Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/101780
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Type: | Journal article |
Title: | Search for contact interactions in dilepton events from pp collisions at √s = 7 TeV with the ATLAS detector |
Other Titles: | Search for contact interactions in dilepton events from pp collisions at root s = 7 TeV with the ATLAS detector |
Author: | Aad, G. ATLAS Collaboration, |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2012; 712(1-2):40-58 |
Publisher: | Elsevier |
Issue Date: | 2012 |
ISSN: | 0370-2693 1873-2445 |
Statement of Responsibility: | G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration) |
Abstract: | This Letter presents a search for contact interactions in the dielectron and dimuon channels using data from proton–proton collisions produced by the LHC at √s = 7 TeV and recorded by the ATLAS detector. The data sample, collected in 2011, corresponds to an integrated luminosity of 1.08 and 1.21 fb⁻¹ in the e⁺e⁻ and μ⁺μ⁻ channels, respectively. No significant deviations from the standard model are observed. Using a Bayesian approach with a prior flat in 1/Λ², the following 95% CL lower limits are placed on the energy scale of ℓℓqq contact interactions: Λ⁻>10.1 TeV (Λ⁺>9.4 TeV) in the electron channel and Λ⁻>8.0 TeV (Λ⁺>7.0 TeV) in the muon channel for constructive (destructive) interference in the left–left isoscalar contact interaction model. Limits are also provided for a prior flat in 1/Λ⁴. |
Rights: | © 2012 CERN. Published by Elsevier B.V. Open access under CC BY-NC-ND license. [https://creativecommons.org/licenses/by-nc-nd/4.0/] |
DOI: | 10.1016/j.physletb.2012.04.026 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1016/j.physletb.2012.04.026 |
Appears in Collections: | Aurora harvest 3 Physics publications |
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hdl_101780.pdf | Published version | 991.44 kB | Adobe PDF | View/Open |
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